Only the 1 carat option is available right now (the smaller one in the pictures).

Moissanite Stone Quality:DEF Color, FL-VVS1.
Moissanite Stone Shapes:Round cut.
Stone Size: This moissanite engagement ring's center stone comes in 1 (6.5mm). Also comes with additional small stones put into the band.
Metal: 925 silver with white and yellow gold plating.